概率论的题~~~~求解答求过程
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概率论的题~~~~求解答求过程
概率论的题~~~~求解答求过程
概率论的题~~~~求解答求过程
1,
P(/AB) = 1- P(AB)
= 1- P(AB)
= 1 - [ P(A) - P(A-B) ]
= 1- (0.6-0.3)
=0.7
2,
P{X
概率论的题~~~~求解答求过程
概率论的题~~~~求解答求过程
概率论的题~~~~求解答求过程
1,
P(/AB) = 1- P(AB)
= 1- P(AB)
= 1 - [ P(A) - P(A-B) ]
= 1- (0.6-0.3)
=0.7
2,
P{X